50
118.71
Sn
Tin
Identification
CAS Number: 7440-31-5
Discoverer: Known to the ancients.
Properties
Atomic Dimensions
Atomic Radius: 145 pm →
Atomic Radius (Rahm): 248 pm
Covalent Radius: 139 pm →Van der Waals Radius: 217 pm
Metallic Radius: 142 pm
Atomic Volume: 16.3 cm³/mol
Lattice Constant: 5.82 Å
Thermodynamics
Electronic Structure
Electron Config: [Kr] 4d10 5s2 5p2
Block: p
Period: 5 →Group: 14 →Electronegativity: 1.96 →Electron Affinity: 1.112067 eV →Oxidation States: +2, +4
Abundance & Geochemistry
Crust Abundance: 2.3 mg/kg
Sea Abundance: 0.000004 mg/L
Goldschmidt Class: chalcophile
About
Silvery malleable metallic element belonging to group 14 of the periodic table. Twenty-six isotopes are known, five of which are radioactive. Chemically reactive. Combines directly with chlorine and oxygen and displaces hydrogen from dilute acids.
Isotopes
Sn-120 120 32.58%
Sn-118 118 24.22%
Sn-116 116 14.54%
Sn-119 119 8.59%
Sn-117 117 7.68%
Sn-124 124 5.79%
Sn-122 122 4.63%
Sn-112 112 0.9700%
Sn-114 114 0.6600%
Sn-115 115 0.3400%
